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Copper Alloys Naval Brass C11000 | Product Overview
Introduction To Copper Alloys Naval Brass / C11000 / CW004A
MOKSH TUBES & FITTINGS LLP is a leading manufacturer, supplier, exporter, importer, and stockist of high-quality Naval Brass (UNS C46400 / CW712R) products including Pipes & Tubes, Sheets & Plates, Rods, Bars, Angles, Channels, Flanges, Pipe Fittings, Fasteners, Welding rods, Wire Mesh, and custom or hard-to-find Naval Brass components.
Copper Alloys Naval Brass, is a copper alloy containing zinc and a small amount of tin, offering excellent corrosion resistance, especially in marine and saltwater environments. It combines high strength and toughness with good ductility, making it a preferred material in applications requiring durability, machinability, and resistance to dezincification and seawater corrosion. It is especially suitable for moderately stressed parts in marine hardware and naval applications.
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Naval Brass Specifications (UNS C46400 / CW712R / CZ112)
| Category | Details |
|---|---|
| Grade | UNS C46400 / CW712R / BS CZ112 |
| Type | Copper–Zinc Alloy (Naval Brass) |
| Typical Chemical Composition | Cu 59–62%, Zn Balance, Sn 0.75–1.25%, Pb ≤ 0.05%, Fe ≤ 0.06% |
| Conditions Available | Annealed, Half-Hard, Hard, Hot Rolled, Cold Drawn |
| Heat Treatment Options | Stress Relieving, Annealing |
| Testing | Tensile, Hardness, Chemical, PMI, UT (on request) |
| Certification | EN 10204 3.1 / 3.2 (Mill Test Certificate) |
Chemical Composition – Naval Brass (C46400)
| Element | Composition (% by weight) |
|---|---|
| Copper (Cu) | 59.0 – 62.0 |
| Zinc (Zn) | Balance |
| Tin (Sn) | 0.75 – 1.25 |
| Lead (Pb) | 0.05 max |
| Iron (Fe) | 0.06 max |
| Others | 0.30 max (Total) |
Physical Properties – Naval Brass
| Property | Imperial Units | Metric Units |
|---|---|---|
| Density | 0.303 lb/in³ | 8.39 g/cm³ |
| Melting Range | 1620 – 1680 °F | 882 – 916 °C |
| Electrical Conductivity | ~28% IACS | ~16 MS/m |
| Thermal Conductivity | 67 Btu/ft·hr·°F | 116 W/m·K |
| Modulus of Elasticity | 15.0 × 10³ ksi | 103 GPa |
| Coefficient of Expansion | — | 19 × 10⁻⁶ /°C |
Heat Treatment – Naval Brass (C46400 / CW712R)
| Heat Treatment Process | Temperature Range | Cooling / Procedure |
|---|---|---|
| Stress Relieving | 250 – 300 °C | Air cool to reduce stresses |
| Soft Annealing | 450 – 600 °C | Furnace cool for ductility |
| Hot Working | 650 – 800 °C | Forging & forming operations |
| Cold Work + Stress Relief | — | Improves strength & stability |
Naval Brass is not hardenable by quenching; heat treatment is used mainly for stress relief and ductility.
Mechanical Properties – Naval Brass (Annealed Condition)
| Property | Annealed | Hot-Finished | Cold-Drawn | Hot-Rolled | Sheet |
|---|---|---|---|---|---|
| Tensile Strength | 379–607 MPa | 379–607 MPa | 379–607 MPa | 379–607 MPa | 379–607 MPa |
| Yield Strength (0.2%) | 172–455 MPa | 172–455 MPa | 172–455 MPa | 172–455 MPa | 172–455 MPa |
| Elongation | ~50% | ~50% | ~50% | ~50% | ~50% |
| Brinell Hardness | ~150 HB | ~150 HB | ~150 HB | ~150 HB | ~150 HB |
| Rockwell Hardness | 60–80 B | 60–80 B | 60–80 B | 60–80 B | 60–80 B |
International Standards & Equivalent Grades – Naval Brass
| Standard | Equivalent Grade |
|---|---|
| UNS | C46400 |
| EN | CW712R |
| BS | CZ112 |
| JIS | C4640 |
| ISO | CuZn36Sn1 |
| ASTM | B21, B171, B122, B124 |
Products in Copper Alloys Naval Brass
Copper Alloys Naval Brass is available in:
✔
Seamless Pipes
✔
Welded Pipes (ERW & EFW)
✔
Tubes (Capillary, U-Bend)
✔
Sheets & Plates
✔
Coils & Strips
✔
Round Bars, Flat Bars, Hex Bars, Square Bars
✔
Pipe Fittings (Elbows, Tees, Reducers, Caps, Stub Ends)
✔
Flanges (Weld Neck, Slip-On, Blind, Socket Weld, Threaded)
✔
Fasteners (Bolts, Nuts, Screws, Washers, Studs)
✔
Custom Fabricated Components
Copper Alloys Naval Brass products are produced to the following global standards:
Uses and Advantages
Superior resistance to saltwater, brine, and biofouling environments.
Capable of withstanding mechanical stress, vibrations, and loads in structural and underwater applications.
Well-suited for machining, turning, and forming operations with minimal tool wear.
Safe for use in hazardous or flammable environments such as shipyards and oil rigs.
Durable material with reduced maintenance and high resistance to dezincification.
Applications of Copper Alloys Naval Brass
Copper Alloys Naval Brass is widely used in applications where exposure to seawater, friction, and high stress are common. Its balance of strength, corrosion resistance, and workability makes it a top choice for:
Marine Hardware & Fittings
Propeller shafts, turnbuckles, nuts, bolts, and seawater pump components.
Shipbuilding & Defense
Used in naval ships for heat exchanger tubes, hulls, keels, and seawater piping.
Desalination & Heat Exchangers
Tubes, shells, and plates in evaporators, condensers, and heaters.
Architectural Applications
Decorative railings, cladding, and fixtures where a golden appearance is desired.
Automotive & Industrial Machinery
Bushings, bearings, valve components, and gears exposed to wear and seawater.
Electrical & Instrumentation
Connectors, terminals, and switch components needing both conductivity and corrosion resistance.
WHY CHOOSE US?
Naval Brass Price per kg in India
Typical Range: ₹550 – ₹900 per kg
(Price varies by OD, wall thickness, form, and finish)
Contact us for exact quotation based on size and quantity.
FAQ's - ETP Copper
What is ETP Copper and why is it widely used in industries?
ETP Copper, also known as Electrolytic Tough Pitch Copper, is the most widely used commercial copper grade with a minimum of 99.90% copper content. It offers excellent electrical and thermal conductivity, ductility, and corrosion resistance. With nearly 100% IACS conductivity, ETP Copper is the preferred choice in electrical, electronic, and industrial applications that demand efficiency and long-term reliability.
What are the key benefits of using ETP Copper?
The benefits of ETP Copper include superior electrical conductivity, excellent heat transfer, and high formability for easy fabrication. It performs reliably in atmospheric and industrial environments and is suitable for welding, brazing, and soldering. Its versatility makes it ideal for electrical systems, cooling equipment, architectural applications, and automotive components.
What are the main applications of ETP Copper in different sectors?
ETP Copper is extensively used in electrical wiring, busbars, switchgear, and transformers due to its high conductivity. It is also applied in PCBs, terminals, and connectors in the electronics industry, while telecom and data sectors use it for cables, grounding, and RF shielding. Other applications include renewable energy systems, HVAC, refrigeration, architectural designs, and automotive parts such as electric vehicle components.
What ETP Copper products does MOKSH TUBES & FITTINGS LLP provide?
MOKSH TUBES & FITTINGS LLP supplies a comprehensive range of ETP Copper products including seamless and welded pipes, tubes, sheets, plates, coils, busbars, strips, foils, rods, flats, fasteners, flanges, pipe fittings, and custom-fabricated components. All products meet international quality standards and are available in both standard and customized specifications for various industrial needs.
Why choose MOKSH TUBES & FITTINGS LLP for ETP Copper materials?
MOKSH TUBES & FITTINGS LLP is a leading manufacturer, supplier, and exporter of ETP Copper with advanced facilities and strict quality checks. The company ensures reliable global supply, competitive pricing, and customized solutions to meet client-specific requirements. With proven expertise across electrical, automotive, telecom, and renewable energy sectors, it delivers high-quality ETP Copper products trusted worldwide.
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